// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)

#pragma once
//
// base sink templated over a mutex (either dummy or real)
// concrete implementation should override the sink_it_() and flush_()  methods.
// locking is taken care of in this class - no locking needed by the
// implementers..
//

#include <spdlog/common.h>
#include <spdlog/details/log_msg.h>
#include <spdlog/sinks/sink.h>

namespace spdlog {
namespace sinks {
    template <typename Mutex> class SPDLOG_API base_sink : public sink
    {
    public:
        base_sink();
        explicit base_sink(std::unique_ptr<spdlog::formatter> formatter);
        ~base_sink() override = default;

        base_sink(const base_sink&) = delete;
        base_sink(base_sink&&) = delete;

        base_sink& operator=(const base_sink&) = delete;
        base_sink& operator=(base_sink&&) = delete;

        void log(const details::log_msg& msg) final;
        void flush() final;
        void set_pattern(const std::string& pattern) final;
        void set_formatter(std::unique_ptr<spdlog::formatter> sink_formatter) final;

    protected:
        // sink formatter
        std::unique_ptr<spdlog::formatter> formatter_;
        Mutex mutex_;

        virtual void sink_it_(const details::log_msg& msg) = 0;
        virtual void flush_() = 0;
        virtual void set_pattern_(const std::string& pattern);
        virtual void set_formatter_(std::unique_ptr<spdlog::formatter> sink_formatter);
    };
}  // namespace sinks
}  // namespace spdlog

#ifdef SPDLOG_HEADER_ONLY
#include "base_sink-inl.h"
#endif
